Viglen L440GX+ Manuel utilisateur

Chapter: 1Overview

Introduction

This manual describes the Viglen L440GX+ motherboard inside your computer. The

motherboard is the most important part of your computer. It contains all of the CPU,

memory and graphics circuitry that makes the computer work.

The motherboard contains the very latest CPU design, Pentium III processors, which

include Intel’s MMX technology. MMX technology adds a total of 57 new

instructions to the CPU, all of which are designed to vastly improve both multimedia

and communications on your PC. The combination of the Intel Pentium III

processors, MMX technology and Viglen expertise make this a formidable computer.

This manual contains technical information about the Viglen L440GX+ motherboard

and other hardware components inside your computer. If you are new to computers

we recommend that you read the user guide first. If you are an experienced

computer user this manual should provide all the information you will need to

perform simple upgrades and maintenance.

We hope that this manual is both readable and informative. If you have any

comments or suggestions about how we could improve the format then please fill out

the form at the back of the manual and send it to us.

Above all we hope that you enjoy using your Viglen computer.

L440GX+MotherboardSpecification

Intel

DC111D

Primary

Secondary

Cirrus

Logic

5480

Adaptec

7896 Intel

82371EB

iFlash

Intel

NIC

Intel

8440GX

Chipset

Primary

Secondary

243

AB C E

FHJ

RSTUVW

4LVD SE

Figure 1

System Board Components

A PS/2 keyboard and Mouse ports R Server monitor module connector

B Heatsink fan connectors S Wide SCSI connector

C Processor connector (SECC2) T LVD SCSI connector

D DIMM Memory sockets (4) U Hard Drive LED Input

E ATX power connector V ISA expansion slot

F System fan connector 2A W ICMB connector

G Diskette drive connector X Chassis intrusion header

H IDE connectors Y PCI expansion slots (6)

J Front panel connector, 16 pin Z ARO RAID Enabler slot.

K AT front panel connector AA System fan connector 2B

L Battery BB WOL Enable/Disable Jumper

M BMC Write Enable Jumper CC VGA connector

N Speaker DD USB connector

P Configuration jumper blocks EE RJ-45 network connector

Q System fan connector 1 FF I/O connections (Parallel, etc.)

Back Panel Connectors

The motherboard external IO connectors are attached to a metallic I/O shield.

This shield serves several purposes:

•=It protects the sensitive motherboard from any external EMC problems.

•=It stops the computer from interfering with other electrical devices.

•=It allows the motherboard to be easily upgraded in the future without having to

resort to buying a whole new case. Simply change the I/O shield to match the

motherboard.

The I/O shield provides external access to PS/2 keyboard and mouse connectors as

well as two serial ports, one parallel port, the VGA port, RJ45 Local Area Network

(LAN) connection and two USB ports

PRINTER

MOUSE

KEYBOARD

SERIAL 2SERIAL 1 NETWORK VGA

USB

Figure 2

NOTE:

The mouse and keyboard can be plugged into either of the PS/2 connectors. Power to the

computer should be turned off before a keyboard or mouse is connected or disconnected.

Feature Summary

The L440GX+ server board supports Pentium III processors running at 450, 500,

550, and 600MHz with 512KB of integrated L2 cache, and also Pentium III

processors running at 600, 650 and 700MHz with 256KB of integrated L2 cache.

The motherboard features:

Form Factor

•=ATX form factor of 12 x 13 inches

Intel 82440GX AGPSet

•=100MHz processor host bus interface support

•=PCI 2.1 compliant

•=Support for 2GB of SDRAM

•=Power Management functions

Microprocessor

•=Single or dual Pentium III processor using 2 * Slot 1 connector’s

•=100 MHz Front Side Bus speed

•=512/256 KB second-level cache on the substrate in the Single Edge Contact

Cartridge Two (SECC2)

Main memory

•=Four 168-pin DIMM sockets for ECC 3.3V memory only

•=Support for up to 2GB of 100MHz registered SDRAM or 1GB of 100MHz

unbuffered SDRAM

Intel 82371EB PCI/ISA/IDE Accelerator (PIIX4e)

•=Supports up to four IDE drives or devices

•=PIO mode 4 and DMA

•=Transfer rates up to 33MB/sec

National 87309 I/O features

•=Support for two FIFO serial ports, one Multi-mode Parallel port, floppy disk

drive and PS/2 keyboard and mouse

Adaptec AIC-7896 controller Interface

•=Support for 8 or 16 bit fast SCSI

•=Ultra2 Wide (Low Voltage Differential) and Ultra Wide (Single Ended)

interfaces

•=Up to 15 devices per channel (depending on configuration)

•=High data transfer rates:

- 40MB/sec max data transfer rate on the Ultra Wide channel

- 80MB/sec max data transfer rate on the Ultra2 channel

•=Support for Adaptec ARO-1130U2 RAID Port III card, built into PCI slot four

Integrated Network Interface

•=Intel 82559 PCI LAN adapter

•=For 10 or 100 Mbps TX fast Ethernet networks

Integrated PCI Video

•=CL-GD5480 64-bit VGA.

•=2MB RAM video memory

•=Support for resolutions up to 1600 x 1200 and support for 16.7 M colors in

certain resolutions

Expansion slots

•=One ISA slot and Six PCI 2.1 compliant slots

- Four standard 32-bit 33MHz slots on the PCI bus. Slots 1 to 4 in Figure 1

- Two 32-bit 66MHz slots using the AGP bus. Slots 5 and 6 in Figure 1

Additional features

•=Intel/Phoenix BIOS that supports Plug and Play, advanced IDE features, and

password security

•=Plug and Play compatible

Microprocessor

The motherboard supports dual Pentium III processors. The processor’s VID pins

automatically program the voltage regulator on the motherboard to the required

processor voltage. The motherboard currently supports processors that run internally

at 450, 500, 550 and 600MHz with 512 KB second-level cache and 600, 650 and

700MHz with 256 KB second-level cache. The processor’s implements MMX™

technology and maintains full backward compatibility with the 8086, 80286, Intel386,

Intel486, Pentium, and Pentium Pro processors. The processor’s numeric

coprocessor significantly increases the speed of floating-point operations and

complies with ANSI/IEEE standard 754-1985.

Microprocessor Packaging

The Pentium III processor is a Single Edge Contact Cartridge Two (SECC2) that

connects to the motherboard through Slot 1, a 242-pin edge connector. The

Pentium III processor SECC2 consists of:

•=Processor card including the processor core and the second-level cache:

burst pipelined synchronous static RAM (BSRAM)

•=Thermal plate

•=Back cover

When the Pentium III processors are mounted into the Slot 1 connectors, they are

secured by a retention mechanism attached to the motherboard.

Processor Upgrades

The motherboard can be upgraded with Pentium III processors that run at higher

speeds. When upgrading the processor the USER must manually configure the

processor speeds in the System BIOS see chapter 4.

Intel & Viglen recommend using identical stepping processors with the L440GX+

server board whenever possible.

Memory

Main Memory

The motherboard has four dual inline memory module (DIMM) sockets. Minimum

memory size is 32 MB using unbuffered DIMMs; maximum memory size is 2 GB

using registered DIMMs. The BIOS automatically detects memory type, size, and

speed.

The motherboard supports the following memory features:

•=168-pin DIMMS with gold-plated contacts.

•=100 MHz PC/100 SDRAM only.

•=ECC (72-bit) 3.3 V memory only.

•=Single or double-banked DIMMs in the following sizes:

Table 1

DIMM Size ECC Configuration Unbuffered/Registered

32 MB 4 Mbit x 72 Unbuffered Only

64 MB 8 Mbit x 72 Both

128 MB 16 Mbit x 72 Both

256 MB 32 Mbit x 72 Both

512 MB 64 Mbit x 72 Registered Only

Memory can be installed in one, two, three or four sockets. Memory size can vary

between the sockets. Memory should be added in order from slot 1 to slot 4.

SDRAM

Synchronous DRAM (SDRAM) improves memory performance through memory

access that is synchronous with the memory clock. This simplifies the timing design

and increases memory speed because all timing is dependent on the number of

memory clock cycles.

NOTE:

To function properly, SDRAM DIMMS must meet the PC/100, 100 MHz.

ECC Memory

Error checking and correcting (ECC) memory detects multiple-bit errors and corrects

single-bit errors.

Chipset

The Intel 440GX+ chipset is the latest generation of Intel’s PCI set and is designed

for the Pentium III processors. It consists of the Intel 82440GX PCI/A.G.P. controller

(PAC) and the Intel 82371EB PCI/ISA/IDE controller (PIIX4e) bridge chip.

Intel 82440GX PCI/A.G.P. Controller (PAC)

The 82440GX host bridge is a 492-pin BGA device with a 3.3V core and mixed 5V,

3.3V, and GTL+ signal interface pins. The PCI host bridge in the 440GX provides the

sole pathway between processor and I/O systems, performing control signal

translations and managing the data path in transactions with PCI resources onboard.

This includes translation of 64-bit operations in the GTL+ signaling environment at

100MHz, to a 32-bit PCI Rev. 2.1 compliant, 5V signaling environment at 33MHz.

The 440GX also handles arbitration for PCI bus master access. Although the 440GX

is capable of being clocked to operate with multiple processor FSB frequencies, on

L440GX+ the host bridge only supports a 100MHz FSB. The device also features 32-

bit addressing (not 36-bit), 4 or 1 deep in-order and request queue (IOQ), dynamic

deferred transaction support, and Desktop Optimized (DTO) GTL bus driver support

(gated transceivers for reduced power operation). The PCI interface provides greater

than 100 MB/s data streamlining for PCI to SDRAM accesses (120 MB/s for writes),

while supporting concurrent processor host bus and PCI transactions to main

memory. This is accomplished using extensive data buffering, with processor-to-

SDRAM and PCI-to-SDRAM write data buffering and write-combining support for

processor-to-PCI burst writes.

Intel 82371EB PCI ISA IDE controller (PIIX4e)

The PIIX4e is a multi-function PCI device, providing four PCI functions in a single

package: PCI-to-ISA bridge, PCI IDE interface, PCI USB controller, and power

management controller. Each function within the PIIX4e has its own set of

configuration registers and once configured, each appears to the system as a distinct

hardware controller sharing the same PCI bus interface. The PIIX4e is packaged as

a 324-pin BGA device. On L440GX+, its primary role is to provide the gateway to all

PC-compatible I/O devices and features. L440GX+ uses the following PIIX4e features:

•=PCI interface

•=ISA bus interface

•=Dual IDE interfaces

•=USB interface

•=Power management control

•=System reset control

•=ISA-compatible interrupt control

•=PC-compatible timer/counters and DMA controllers

•=Baseboard plug-n-play support

•=General purpose I/O

•=Real-time Clock and CMOS configuration RAM.

Super I/O Controller

The PC87309 Super I/O Controller from National Semiconductor is an ISA Plug and

Play compatible, multifunction I/O device that provides the following features:

•=Serial ports

=Two 16450/16550A-software compatible UARTs

=Internal send/receive 16-byte FIFO buffer

=Four internal 8-bit DMA options for the UART with SIR support (USI)

•=Multimode bidirectional parallel port

=Standard mode: IBM and Centronics compatible

=Enhanced parallel port (EPP) mode with BIOS and driver support

=High-speed extended capabilities port (ECP) mode

•=Floppy disk controller

=PC8477 compatible, which contains a superset of the floppy disk

controllers in the DP8473 and N82077.

=16-byte FIFO

=PS/2 diagnostic-register support

=High-performance digital data separator (DDS)

=PC-AT and PS/2 drive-mode support

•=Keyboard and mouse controller

=Industry standard 8042AH PC87911compatible

=General-purpose microcontroller

=8-bit internal data bus

By default, the I/O controller interfaces are automatically configured during boot up.

The I/O controller can also be manually configured in the Setup program.

Serial Ports

Two compatible 9-pin D-Sub serial port connectors, both are located on the back IO

panel see Figure 2.

Parallel Port

The connector for the multimode bidirectional parallel port is a 25-pin D-Sub

connector located on the back panel. In the Setup program, the parallel port can be

configured for the following:

•=Compatible (standard mode)

•=Bidirectional

•=Extended Parallel Port (EPP) Levels 1.7 & 1.9

•=Enhanced Capabilities Port (ECP)

Floppy Controller

In the Setup program, the floppy interface can be configured for the following floppy

drive capacities and sizes:

•=360 KB, 5.25-inch

•=1.2 MB, 5.25-inch

•=720 KB, 3.5-inch

•=1.2 MB, 3.5-inch (driver required)

•=1.25/1.44 MB, 3.5-inch

Keyboard and Mouse Interface

PS/2 keyboard and mouse connectors are located on the back panel. The 5 V lines

to these connectors are protected with a PolySwitch circuit that, like a self-healing

fuse, re-establishes the connection after an over-current condition is removed.

The keyboard controller contains the AMI Megakey keyboard and mouse controller

code, which provides the keyboard and mouse control functions, and supports

password protection for power on/reset. A power on/reset password can be

specified in Setup.

The keyboard controller also supports the hot-key sequence <Ctrl><Alt><Del> for a

software reset. This key sequence resets the computer’s software by jumping to the

beginning of the BIOS code and running the Power-On Self Test (POST).

Real-time Clock, CMOS SRAM, and Battery

The clock provides a time-of-day clock and a multicentury calendar with alarm

features and century rollover.

The time, date, and CMOS values can be specified in the Setup program. The

CMOS values can be returned to their defaults by using the Setup program.

An external coin-cell battery powers the real-time clock and CMOS memory. When

the computer is not plugged into a wall socket, the battery has an estimated life of

three years. When the computer is plugged in, the 3.3-V standby current from the

power supply extends the life of the battery. The clock is accurate to ±13

minutes/year at 25 ºC with 3.3 V applied.

IDE Support

The motherboard has two independent bus-mastering PCI IDE interfaces. These

interfaces support PIO Mode 3, PIO Mode 4, ATAPI devices (e.g., CD-ROM), and

DMA mode transfers. The BIOS supports logical block addressing (LBA) and

cylinder head sector (CHS) translation modes. The BIOS automatically detects the

IDE device transfer rate and translation mode.

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